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Old 02 July 2007, 19:18   #31
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having seen it in action...
The thing is, I'm not talking about the same trailer, I have something different in mind that would work in a completely different way, but achieve the same objective of being a combination trailer where the road wheels are never submerged. Trailers are a very primitive piece of engineering, and there's a huge scope for designing something much, much better by starting with a clean sheet of paper rather than just attacking the current design piecemeal. James has made an excellent start at this, but I'm sure much, much more can be done.
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Old 02 July 2007, 19:21   #32
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But what if it could be accomplshed for a factor of 1.5x the price of a standard trailer?
That still buys a new hub/bearing set every year for 15 years.


Last year I thought seriously about starting a business building trailers like that. I spent a long time with blank sheets of paper,did most of the costings and so on but didn't go ahead (Believe me ,I've probably thought of every variation possible-right down to remote launching using hydraulic or air assisted rams).
I came to the conclusion that as an optional extra it'd work along with an existing business but the sales volume wouldn't be enough to sustain it as a sole design type. The drawbacks cut too many people out of the targetted sales window.
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Old 02 July 2007, 19:27   #33
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I came to the conclusion that... the sales volume wouldn't be enough to sustain it as a sole design type.
Yep, me too! That's why I'm still doing the day job!
It's just a great pity that companies like Indespension, Bramber, Snipe, De Graff, SBS and the rest continue to churn out the same old technology year after year. That's why I admire James for putting an idea like this into action.
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Old 02 July 2007, 19:37   #34
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rt

one other item is a super strong ribbed trailer front jockey wheel that can take a ton of weight and have a pneumatic tyre so the trailer can be towed on a rope and not bother about the weight on the jockey

the two wheels mentioned are a good idea but not sure it would work on a heavy boat
A Ton, how is that useful?
Tow hitches on regular road vehicles only take 75-125 Kilos nose weight at best. Them there Vipermax’s must be real bow heavy.

The wheels in the earlier pictures do exactly what they were designed for with no probs, i.e. drag the boat and trailer up the beach.
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Old 02 July 2007, 19:48   #35
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A Ton, how is that useful?
Tow hitches on regular road vehicles only take 75-125 Kilos nose weight at best. Them there Vipermax’s must be real bow heavy.

The wheels in the earlier pictures do exactly what they were designed for with no probs, i.e. drag the boat and trailer up the beach.
one of these

http://www.towsure.com/product/13906...key_Wheel_48mm

so that if pulling up a hill, over stones, etc etc with a heavier boat then it will easily take the load and the fastener for securing the jockey wheel can take the strain as well due to the ribbed design.....had one on the previous trailer and they are great.

was thinking they take a ton but is around 500kg they can take
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Old 02 July 2007, 19:52   #36
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Errrr.... Chris me ole mate, I think you've missed Yoyo's point!
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Old 02 July 2007, 21:37   #37
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one of these

http://www.towsure.com/product/13906...key_Wheel_48mm

so that if pulling up a hill, over stones, etc etc with a heavier boat then it will easily take the load and the fastener for securing the jockey wheel can take the strain as well due to the ribbed design.....had one on the previous trailer and they are great.

was thinking they take a ton but is around 500kg they can take
The problem is that 500kgs is downwards only - they bend pretty easily if you aren't careful.......
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Old 03 July 2007, 00:40   #38
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How about a nice walkway on the trailer, so one doesn't get their feet wet when recovering?
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Old 03 July 2007, 03:03   #39
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How about a nice walkway on the trailer, so one doesn't get their feet wet when recovering?
Andy

Mark has one of these on his trailer - very useful.

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Old 03 July 2007, 03:23   #40
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How about a nice walkway on the trailer, so one doesn't get their feet wet when recovering?
ahyes perfect, saves trying to balance down the frame
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